I have a c300 sport, and was thinking of upgrading my fogs to HID but when i pulled the fog lights out, i found that there is a socket on the back of the H7 bulb. I guess it was to avoid water. But now i can't install the HID kit, if anyone know how please let me know. Thanks!!!!

I will post pics up so you can see what I did. I didn't have to cut any wires but drilled two hole through the socket that was holding the OEM headlights in place. That was the easier way to get it done, plus I didn't want to cut any wires (that might void the warrantee).

Here's a pic of my HID 10000k Fogs, if anyone upgrading make sure you get the 55w HID kit otherwise the ECU is gonna auto shut off. I had to find this out the hard way, now i have an extra set of HID. hehehe....... good luck all!!!